EP 2477454 A4 20131127 - RADIO FREQUENCY HEATING APPARATUS
Title (en)
RADIO FREQUENCY HEATING APPARATUS
Title (de)
FUNKFREQUENZ-ERWÄRMUNGSVORRICHTUNG
Title (fr)
APPAREIL DE CHAUFFAGE À HAUTE FRÉQUENCE
Publication
Application
Priority
- JP 2009208898 A 20090910
- JP 2010005400 W 20100902
Abstract (en)
[origin: US2012125917A1] A radio frequency heating apparatus includes a printed circuit board on which power-supply noise filter circuit (20) that reduces power-supply noise generated by magnetron (15) and power-supply synchronization detecting circuit (21) that is connected across both terminals of power supply for detecting information on power-supply frequency are mounted. Power-supply synchronization detecting circuit (21) is used as a discharge path for charge accumulated at both ends of capacitor (3) configuring power-supply noise filter circuit (20). This achieves the radio frequency heating apparatus that eliminates the risk of electric shock, reduces power consumption, and reduces the number of components.
IPC 8 full level
CPC (source: EP US)
H05B 6/666 (2013.01 - EP US); H05B 6/685 (2013.01 - EP US); Y02B 40/00 (2013.01 - EP US)
Citation (search report)
- [A] JP S634590 A 19880109 - TOSHIBA CORP, et al
- [A] JP S63284791 A 19881122 - TOSHIBA CORP
- [A] JP H05121161 A 19930518 - SANYO ELECTRIC CO
- [A] JP H0864358 A 19960308 - MITSUBISHI ELECTRIC HOME APPL, et al
- See references of WO 2011030524A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
US 2012125917 A1 20120524; US 9974121 B2 20180515; CN 102474923 A 20120523; CN 102474923 B 20140709; EP 2477454 A1 20120718; EP 2477454 A4 20131127; EP 2477454 B1 20150415; JP 2011060566 A 20110324; WO 2011030524 A1 20110317
DOCDB simple family (application)
US 201013386269 A 20100902; CN 201080033174 A 20100902; EP 10815125 A 20100902; JP 2009208898 A 20090910; JP 2010005400 W 20100902